CN215417802U - Liquid insulation transformer heat radiation structure - Google Patents
Liquid insulation transformer heat radiation structure Download PDFInfo
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- CN215417802U CN215417802U CN202121175312.8U CN202121175312U CN215417802U CN 215417802 U CN215417802 U CN 215417802U CN 202121175312 U CN202121175312 U CN 202121175312U CN 215417802 U CN215417802 U CN 215417802U
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Abstract
The utility model discloses a liquid insulation transformer heat radiation structure, comprising: the transformer is a self-driven radiator consisting of an aluminum profile and a sealed metal heat conduction pipe; the sealed metal heat conduction pipe is a hollow pipe with two closed ports, and a refrigerant is injected into a sealed pipe cavity of the sealed metal heat conduction pipe when the sealed pipe cavity is in a vacuum state; the aluminum profile is located above the transformer, a central through hole of the aluminum profile is in interference fit with the upper end of the sealing metal heat conduction pipe, the middle of the sealing metal heat conduction pipe is fixed on the top surface of the shell of the transformer through the sealing installation structure, the lower end of the sealing metal heat conduction pipe extends into the insulating liquid in the shell of the transformer, and the lower end of the sealing metal heat conduction pipe is located above an iron core winding of the transformer. The utility model can efficiently realize the heat dissipation of the insulating liquid of the transformer; moreover, the self-driven radiator is positioned at the top of the transformer, so that the occupied area of the transformer is not increased, and the overall size and the weight of the transformer and the heat dissipation structure are greatly reduced.
Description
Technical Field
The utility model relates to a heat dissipation structure of a transformer, in particular to a heat dissipation structure of a liquid insulation transformer.
Background
A transformer is a stationary electrical device that converts ac power at one voltage level to ac power at another voltage level using the principle of electromagnetic induction. When the transformer operates, the transformer generates some power loss, such as wire loss, core loss and additional loss. These losses are dissipated in the form of heat to the surroundings and raise the temperature of the transformer parts.
In a traditional insulating liquid transformer, heat emitted by an iron core and a winding is carried away into insulating liquid of a box body through the flowing of the internal insulating liquid, and then is dissipated to air outside the box body through a metal surface of the insulating liquid in contact with the box body, and the heat is carried away through the flowing of air. Namely: the insulating liquid in the transformer plays two roles, on one hand, the insulating property is provided, the stable insulation is maintained between electrified parts in the transformer, and the continuous safe operation guarantee is provided; on the other hand, the cooling medium of the transformer is provided, and because the insulation performance of the insulation material of the transformer is reduced along with the increase of the temperature, the heat generated by the loss in the winding and the iron core must be dissipated in time so as not to cause insulation damage due to overheating.
The core and the windings transfer heat first to the insulating liquid in their vicinity, causing the temperature of the insulating liquid to rise. The volume of the insulating liquid with high temperature is increased, and the specific gravity is reduced, so that the insulating liquid moves to the upper part of the oil tank. The cold insulating liquid supplements the natural motion to the original position of the heat insulating liquid. The heat insulating liquid emits heat along the wall of the tank or the radiator pipe, is taken away by surrounding air through the wall of the tank or the pipe wall, and returns to the lower part of the transformer tank to participate in circulation after the temperature is reduced. Thus, due to the difference in temperature of the insulating liquid, a natural circulation flow of oil is generated, namely: the heat insulating liquid flows downwards along the inner surface of the radiator (without the radiator along the wall) from the upper part of the transformer oil tank, the heat is transferred to air (wind) through the pipe wall or the wall in the downward flowing process, the cooled insulating liquid enters the transformer tank from the lower part of the radiator and then rises through various channels, the heat of the coil and the iron core is taken away in the rising process, and the heat insulating liquid is converged at the upper part of the transformer tank, so that the circulation is repeated.
Self-cooled liquid-insulated transformers rely on radiation from the tank wall (or radiator wall) and natural convection from the air surrounding the transformer to carry heat away from the tank surface. The heat dissipation effect is thus dependent on the metal area of the transformer tank. In order to increase the heat dissipation surface of the transformer, some box walls are made into wave shapes, some box walls are welded with pipes, and some box walls are provided with radiators to promote the convection of oil.
Since the loss of a transformer is proportional to its volume, as the capacity of the transformer increases, its volume and loss will increase to the third power of the core size, while the outer surface area only increases to the second power of the size. Therefore, in the transformer with smaller capacity, the smooth oil tank surface is enough for cooling oil; in the medium-capacity transformer, the surface of an oil tank is required to be corrugated to increase a radiating surface, or a fin type or flat tube radiator is additionally arranged, and the radiator extends outwards from the side edge of a transformer tank body, so that the liquid flowing effect far away from the tank wall is reduced rapidly, the appearance of the transformer with the radiator is extremely large, and the product weight and the insulating liquid are increased. For a large-capacity transformer, a large radiator is required to be equipped, an oil pump is also required to be equipped on the radiator or a forced water cooling system is required to be adopted on the radiator to realize the purposes of heat dissipation and cooling, but the problems of investment and operation and maintenance of matched facilities are also increased.
The increase of the volume of the box body causes the restriction of liquid flow due to the increase of the distance, the heat dissipation effect of the distal end part is greatly reduced, a larger box body is required to contain more heat dissipation fins, the structure is also strengthened due to the increase of the volume, the weight is also greatly increased, and a series of problems of volume, weight, cost, transportation, installation and the like are caused.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is as follows: a heat dissipation structure of a liquid insulation transformer is provided.
The technical scheme adopted by the utility model is as follows:
the utility model provides a liquid insulation transformer heat radiation structure which characterized in that includes: a transformer and a self-driven heat sink; the self-driven radiator consists of an aluminum profile and a sealed metal heat conduction pipe, the sealed metal heat conduction pipe is a hollow pipe with two closed ports, and a refrigerant is injected into a sealed pipe cavity of the sealed metal heat conduction pipe when the sealed pipe cavity is in a vacuum state; the aluminium alloy is located the top of transformer, just the central through-hole of aluminium alloy with the upper end interference fit of sealed metal heat pipe, the middle part of sealed metal heat pipe is fixed through sealed mounting structure the casing top surface of transformer, the lower tip of sealed metal heat pipe stretches into the transformer is located in the insulating liquid of its casing, just the lower tip of sealed metal heat pipe is located the iron core winding top of transformer.
Therefore, when the transformer normally runs, high-temperature insulating liquid is concentrated on the upper part of the shell of the transformer, the liquid refrigerant at the lower end part of the sealing metal heat conduction pipe absorbs heat to form a gas state and rises to the upper end part of the sealing metal heat conduction pipe along the sealing metal heat conduction pipe, due to the rapid heat transfer characteristic of the aluminum profile, the heat of the refrigerant can be rapidly transmitted to the surface of the aluminum profile and radiated to the air, so that the sealing metal heat conduction pipe is rapidly cooled, the gas refrigerant at the upper end part of the sealing metal heat conduction pipe is converted into the liquid state and flows to the lower end part along the side wall of the sealing metal heat conduction pipe due to self weight, heat exchange is carried out again, and the circulation is carried out repeatedly, so that the heat radiation of the insulating liquid of the transformer is realized.
Therefore, the utility model efficiently realizes the heat dissipation of the insulating liquid of the transformer; moreover, the self-driven radiator is positioned at the top of the transformer, so that the occupied area of the transformer is not increased, and the overall size and the weight of the transformer and the heat dissipation structure are greatly reduced.
Preferably: the aluminum profile is a star-shaped finned tube, and the axis of the aluminum profile extends in the vertical direction.
Thereby, can increase the heat radiating area of aluminium alloy and alleviate the weight of aluminium alloy on the one hand, on the other hand can utilize between two adjacent fins of star-shaped finned tube along the guide slot of vertical direction extension to draw better heat conduction air flow, forms the cigarette effect of leading to, and the heat dissipation of aluminium alloy can be accelerated to these two aspects homoenergetic. And for the condition that the heat radiation structure of the liquid insulation transformer is provided with a plurality of self-driven radiators, the guide grooves of the star-shaped finned tubes are utilized to enable two adjacent star-shaped finned tubes to be arranged in a crossed mode, so that the installation space required by aluminum profiles can be saved, and more self-driven radiators can be installed on the top surface of the shell of the transformer.
Preferably: the liquid insulation transformer heat dissipation structure is provided with a plurality of self-driven radiators, and the self-driven radiators are uniformly distributed on the top surface of the shell of the transformer. The number of the self-driven radiators can be increased or decreased according to the actual running condition of the transformer.
Preferably: the transformer is an oil-immersed transformer, the lowest end of the sealing metal heat conduction pipe is located at 70% -75% of the transformer in the height direction of a shell of the transformer, and the lowest end of the sealing metal heat conduction pipe is located at the highest temperature position of insulating liquid of the oil-immersed transformer so as to improve the heat dissipation efficiency of the self-driven radiator on the insulating liquid of the oil-immersed transformer.
As a preferred embodiment of the present invention: the lower end of the sealed metal heat conduction pipe is spiral. Therefore, under the condition that the extending depth of the lower end part of the sealing metal heat conduction pipe is not changed, the contact area of the sealing metal heat conduction pipe and the insulating liquid is increased, so that the heat exchange efficiency with the insulating liquid is improved, the phenomenon that the extending depth of the lower end part of the sealing metal heat conduction pipe is too large is avoided, the metal insulation distance in the transformer is kept, and the operation safety is ensured.
Preferably: referring to fig. 3, the installation positions of the two adjacent sealed metal heat conduction pipes on the aluminum profile in the axial direction are staggered by half of the screw pitch, which is the screw pitch of the spiral lower end of the sealed metal heat conduction pipe, so that the two adjacent self-driven radiators can be installed close to each other, and the spiral lower ends between the two adjacent self-driven radiators do not cause interference.
Preferably: referring to fig. 4, the seal mounting structure includes a mounting nozzle, a seal ring and a screw cap, the mounting nozzle is disposed on the top surface of the transformer housing, a tube cavity of the mounting nozzle is communicated with the interior of the transformer housing, and the lower end of the seal metal heat conduction tube extends into the insulating liquid in the transformer housing through the tube cavity of the mounting nozzle; an inclined plane is arranged at the top of the tube cavity of the mounting nozzle, the sealing ring is sleeved outside the sealed metal heat conduction tube and is located on the inclined plane of the mounting nozzle, and the screw cap is in threaded connection with the mounting nozzle and tightly presses the sealing ring on the inclined plane of the mounting nozzle; and the screw pitch of the spiral lower end part of the sealed metal heat conduction pipe is greater than the height of the mounting nozzle, so that the spiral lower end part of the sealed metal heat conduction pipe can extend into the insulating liquid in the shell of the transformer through the pipe cavity of the mounting nozzle, each self-driven radiator can be conveniently and independently mounted and replaced, and the maintenance efficiency is improved.
Therefore, the sealing ring extruded by the rotary cover is sunk into the inclined plane and deforms to tightly wrap the sealing metal heat conduction pipe, the sealing ring and the sealing metal heat conduction pipe are circular, a precise sealing surface can be formed, the sealing is tighter along with the screw thread of the rotary cover is screwed off, and when the running temperature of the transformer rises, the sealing effect can be further improved by the expansion of the sealing ring, so that the sealing installation structure can realize the sealing installation of the sealing metal heat conduction pipe on the top surface of the shell of the transformer.
As a preferred embodiment of the present invention: referring to fig. 5, the transformer is a buried box transformer, and the buried box transformer is installed in a pit below the landscape high-low voltage cabinet; the aluminum profile is located at the lower part of the landscape high-low voltage cabinet body, so that the heat of the transformer is lifted to the lower part of the landscape high-low voltage cabinet body through the aluminum profile to be dissipated, and the problem that the heat dissipation of the lower channel of the landscape high-low voltage cabinet is difficult due to the fact that the heating body of the buried box transformer is below the ground surface is solved.
Preferably: the fan is installed to view high-low voltage cabinet's cabinet body lower part position to carry out forced air cooling through the fan, improve the radiating effect, better solved the transformer temperature rise problem of buried box transformer substation.
Compared with the prior art, the utility model has the following beneficial effects:
firstly, the self-driven radiator consisting of the aluminum profile and the sealed metal heat conduction pipe can absorb heat at the position of the insulating liquid where the heat of the transformer is most concentrated by the refrigerant in the sealed metal heat conduction pipe and carry the heat to the aluminum profile for radiating, so that the heat radiation of the insulating liquid of the transformer is efficiently realized; moreover, the self-driven radiator is positioned at the top of the transformer, so that the occupied area of the transformer is not increased, and the overall size and the weight of the transformer and the heat dissipation structure are greatly reduced.
Secondly, the star-shaped finned tubes are used as aluminum profiles, and the axes of the aluminum profiles extend in the vertical direction, so that the heat dissipation of the aluminum profiles can be accelerated; and for the condition that the heat radiation structure of the liquid insulation transformer is provided with a plurality of self-driven radiators, the guide grooves of the star-shaped finned tubes are utilized to enable two adjacent star-shaped finned tubes to be arranged in a crossed mode, so that the installation space required by aluminum profiles can be saved, and more self-driven radiators can be installed on the top surface of the shell of the transformer.
Thirdly, the utility model can increase the contact area of the sealing metal heat conduction pipe and the insulating liquid to improve the heat exchange efficiency with the insulating liquid under the condition that the extending depth of the lower end part of the sealing metal heat conduction pipe is not changed by arranging the lower end part of the sealing metal heat conduction pipe in a spiral shape, thereby avoiding the excessive extending depth of the lower end part of the sealing metal heat conduction pipe to keep the metal insulation distance in the transformer and ensuring the operation safety.
Fourthly, the sealing installation structure adopted by the utility model can reliably realize the sealing installation of the sealing metal heat conduction pipe on the top surface of the shell of the transformer, and simultaneously can facilitate the independent installation and replacement of each self-driven radiator, thereby improving the maintenance efficiency.
Drawings
The utility model is described in further detail below with reference to the following figures and specific examples:
fig. 1 is a schematic structural diagram of a heat dissipation structure of a liquid-insulated transformer according to the present invention;
FIG. 2 is a schematic view of a self-driven heat sink according to the present invention;
FIG. 3 is a schematic view of the installation positions of two adjacent self-driven radiators in the axial direction;
FIG. 4 is a schematic structural view of a seal mounting structure according to the present invention;
fig. 5 is a schematic structural view of the buried box transformer substation and the landscape high-low voltage cabinet.
Detailed Description
The present invention will be described in detail with reference to the following embodiments and the accompanying drawings to help those skilled in the art to better understand the inventive concept of the present invention, but the scope of the claims of the present invention is not limited to the following embodiments, and all other embodiments obtained without inventive work by those skilled in the art will fall within the scope of the present invention without departing from the inventive concept of the present invention.
Example one
As shown in fig. 1 and 2, the present invention discloses a heat dissipation structure of a liquid insulation transformer, including: a transformer 1 and a self-driven heat sink; the self-driven radiator consists of an aluminum profile 2 and a sealed metal heat conduction pipe 3, the sealed metal heat conduction pipe 3 is a hollow pipe with two closed ports, and a refrigerant is injected into a sealed pipe cavity of the sealed metal heat conduction pipe 3 when the sealed pipe cavity is in a vacuum state; aluminium alloy 2 is located transformer 1's top, just aluminium alloy 2's central through-hole with sealed metal heat pipe 3's upper end interference fit, sealed metal heat pipe 3's middle part is fixed through sealed mounting structure 4 transformer 1's casing top surface 1a, sealed metal heat pipe 3's lower tip stretches into transformer 1 is arranged in its casing insulating liquid, just sealed metal heat pipe 3's lower tip is located transformer 1's iron core winding 1-1 top.
Therefore, when the transformer 1 normally operates, the high-temperature insulating liquid is concentrated on the upper part of the shell of the transformer 1, the liquid refrigerant at the lower end part of the sealing metal heat conduction pipe 3 absorbs heat to form a gas state, the gas refrigerant rises to the upper end part of the sealing metal heat conduction pipe 3 along the sealing metal heat conduction pipe 3, due to the rapid heat transfer characteristic of the aluminum profile 2, the heat of the refrigerant can be rapidly transmitted to the surface of the aluminum profile 2 and radiated to the air, so that the sealing metal heat conduction pipe 3 is rapidly cooled, the gas refrigerant at the upper end part of the sealing metal heat conduction pipe 3 is converted into the liquid state, flows to the lower end part along the side wall of the sealing metal heat conduction pipe 3 due to the self weight, heat exchange is carried out again, and the circulation is repeatedly carried out, so that the heat radiation of the insulating liquid of the transformer 1 is realized.
Therefore, the utility model efficiently realizes the heat dissipation of the insulating liquid of the transformer 1; moreover, the self-driven radiator is positioned at the top of the transformer 1, so that the occupied area of the transformer 1 is not increased, and the overall size of the transformer 1 with the radiating structure is greatly reduced and the weight is reduced.
The above is a basic implementation manner of the first embodiment, and further optimization, improvement and limitation may be performed on the basis of the basic implementation manner:
preferably: the aluminum profile 2 is a star-shaped finned tube, and the axis of the aluminum profile 2 extends in the vertical direction.
Thereby, can increase aluminium alloy 2's heat radiating area and alleviate aluminium alloy 2's weight on the one hand, on the other hand can utilize between two adjacent fins of star-shaped finned tube along the guide slot of vertical direction extension to draw better heat conduction air flow, forms the cigarette effect of leading to, and aluminium alloy 2's heat dissipation can all be accelerated in these two respects. Moreover, under the condition that the heat dissipation structure of the liquid insulation transformer is provided with a plurality of self-driven radiators, the guide grooves of the star-shaped finned tubes are utilized to enable two adjacent star-shaped finned tubes to be arranged in a crossed mode, so that the installation space required by the aluminum profile 2 can be saved, and more self-driven radiators can be installed on the top surface 1a of the shell of the transformer 1.
Preferably: the liquid insulation transformer heat radiation structure is provided with a plurality of self-driven radiators, and the self-driven radiators are uniformly distributed on the top surface 1a of the shell of the transformer 1. Wherein, the number of the self-driven radiators can be increased or decreased according to the actual operation condition of the transformer 1.
Preferably: the transformer 1 is an oil-immersed transformer, the lowest end of the sealing metal heat conduction pipe 3 is located at 70% -75% of the transformer 1 in the height direction of a shell of the transformer, and the lowest end is the highest temperature position of insulating liquid of the oil-immersed transformer, so that the heat dissipation efficiency of the self-driven radiator on the insulating liquid of the oil-immersed transformer is improved.
Example two
On the basis of the first embodiment, the second embodiment further adopts the following preferred structure:
the lower end of the sealed metal heat transfer pipe 3 is formed in a spiral shape.
Therefore, under the condition that the extending depth of the lower end part of the sealing metal heat conduction pipe 3 is not changed, the contact area of the sealing metal heat conduction pipe 3 and the insulating liquid is increased to improve the heat exchange efficiency with the insulating liquid, so that the phenomenon that the extending depth of the lower end part of the sealing metal heat conduction pipe 3 is too large is avoided, the metal insulation distance in the transformer 1 is kept, and the operation safety is ensured.
The above is the basic implementation manner of the second embodiment, and further optimization, improvement and limitation can be made on the basis of the basic implementation manner:
preferably: referring to fig. 3, the installation positions of the two adjacent sealed metal heat conduction pipes 3 on the aluminum profile 2 in the axial direction are staggered by half a pitch, which is the pitch of the spiral lower end of the sealed metal heat conduction pipe 3, so that the two adjacent self-driven radiators can be installed close to each other, and the spiral lower ends of the two adjacent self-driven radiators do not interfere with each other.
Preferably: referring to fig. 4, the sealing installation structure 4 comprises an installation nozzle 4-1, a sealing ring 4-2 and a screw cap 4-3, the installation nozzle 4-1 is arranged on the top surface 1a of the casing of the transformer 1, the tube cavity of the installation nozzle 4-1 is communicated with the inside of the casing of the transformer 1, and the lower end part of the sealing metal heat conduction tube 3 extends into the insulating liquid in the casing of the transformer 1 through the tube cavity of the installation nozzle 4-1; an inclined surface 4-1a is arranged at the top of the tube cavity of the mounting nozzle 4-1, the sealing ring 4-2 is sleeved outside the sealing metal heat conduction tube 3 and is located on the inclined surface 4-1a of the mounting nozzle 4-1, and the screw cap 4-3 is in threaded connection with the mounting nozzle 4-1 and presses the sealing ring 4-2 on the inclined surface 4-1a of the mounting nozzle 4-1; moreover, the thread pitch of the spiral lower end part of the sealed metal heat conduction pipe 3 is larger than the height of the mounting nozzle 4-1, so that the spiral lower end part of the sealed metal heat conduction pipe 3 can extend into the insulating liquid in the shell of the transformer 1 through the tube cavity of the mounting nozzle 4-1, each self-driven radiator can be conveniently and independently mounted and replaced, and the maintenance efficiency is improved.
Therefore, the sealing ring 4-2 extruded by the rotary cover 4-3 sinks into the inclined surface 4-1a and deforms to tightly wrap the sealing metal heat conduction pipe 3, the sealing ring 4-2 and the sealing metal heat conduction pipe 3 are circular, a precise sealing surface can be formed, the sealing effect is further improved as the rotary cover 4-3 is screwed down to seal, and when the operating temperature of the transformer 1 rises, the sealing ring 4-2 expands, so that the sealing installation structure 4 can realize the sealing installation of the sealing metal heat conduction pipe 3 on the top surface 1a of the shell of the transformer 1.
EXAMPLE III
On the basis of the first embodiment or the second embodiment, the third embodiment further adopts the following preferable structure:
referring to fig. 5, the transformer 1 is a buried box transformer substation, and the buried box transformer substation is installed in a pit below the landscape high-low voltage cabinet 5; the aluminum profile 2 is located at the lower part of the landscape high-low voltage cabinet 5, so that the heat of the transformer 1 is lifted to the lower part of the landscape high-low voltage cabinet 5 through the aluminum profile 2 to be dissipated, and the problem that the heat generating body of the buried box transformer is difficult to dissipate heat through the lower channel of the landscape high-low voltage cabinet 5 below the ground surface is solved.
The above is the basic implementation of the third embodiment, and further optimization, improvement and limitation can be made on the basis of the basic implementation:
preferably: the fan 6 is installed to the cabinet body lower part position of view high-low voltage cabinet 5 to carry out forced air cooling through fan 6, improve the radiating effect, better solved the transformer temperature rise problem that the formula of burying case becomes.
The present invention is not limited to the above embodiments, and various other equivalent modifications, substitutions and alterations can be made without departing from the basic technical concept of the utility model as described above, according to the common technical knowledge and conventional means in the field.
Claims (9)
1. The utility model provides a liquid insulation transformer heat radiation structure which characterized in that includes: a transformer (1) and a self-driven heat sink; the self-driven radiator consists of an aluminum profile (2) and a sealed metal heat conduction pipe (3), wherein the sealed metal heat conduction pipe (3) is a hollow pipe with two closed ports, and a refrigerant is injected into a sealed pipe cavity of the sealed metal heat conduction pipe (3) when the sealed pipe cavity is in a vacuum state; aluminium alloy (2) are located the top of transformer (1), just the central through-hole of aluminium alloy (2) with the upper end interference fit of sealed metal heat pipe (3), the middle part of sealed metal heat pipe (3) is fixed through sealed mounting structure (4) the casing top surface (1a) of transformer (1), the lower tip of sealed metal heat pipe (3) stretches into in the insulating liquid of transformer (1), just the lower tip of sealed metal heat pipe (3) is located the iron core winding (1-1) top of transformer (1).
2. The liquid-insulated transformer heat dissipation structure of claim 1, wherein: the aluminum profile (2) is a star-shaped finned tube, and the axis of the aluminum profile (2) extends in the vertical direction.
3. The liquid-insulated transformer heat dissipation structure of claim 1, wherein: the liquid insulation transformer heat dissipation structure is provided with a plurality of self-driven radiators, and the self-driven radiators are uniformly distributed on the top surface (1a) of the shell of the transformer (1).
4. The liquid-insulated transformer heat dissipation structure of claim 1, wherein: the transformer (1) is an oil-immersed transformer, and the lowest end of the sealing metal heat conduction pipe (3) is located at 70% -75% of the transformer (1) in the height direction of a shell of the transformer.
5. The liquid-insulated transformer heat dissipation structure of any one of claims 1 to 4, wherein: the lower end of the sealed metal heat conduction pipe (3) is spiral.
6. The liquid-insulated transformer heat dissipation structure of claim 5, wherein: two adjacent sealing metal heat pipe (3) on aluminium alloy (2) stagger half pitch each other at its ascending mounted position of axial, the pitch is the pitch of the heliciform lower tip of sealing metal heat pipe (3).
7. The liquid-insulated transformer heat dissipation structure of claim 5, wherein: the sealing installation structure (4) comprises an installation nozzle (4-1), a sealing ring (4-2) and a rotary cover (4-3), the installation nozzle (4-1) is arranged on the top surface (1a) of a shell of the transformer (1), a tube cavity of the installation nozzle (4-1) is communicated with the interior of the shell of the transformer (1), and the lower end part of the sealing metal heat conduction tube (3) extends into insulating liquid in the shell of the transformer (1) through the tube cavity of the installation nozzle (4-1); an inclined plane (4-1a) is arranged at the top of the tube cavity of the mounting nozzle (4-1), the sealing ring (4-2) is sleeved outside the sealing metal heat conduction tube (3) and is located on the inclined plane (4-1a) of the mounting nozzle (4-1), and the screw cap (4-3) is in threaded connection with the mounting nozzle (4-1) and presses the sealing ring (4-2) on the inclined plane (4-1a) of the mounting nozzle (4-1); the pitch of the spiral lower end of the sealed metal heat transfer pipe (3) is greater than the height of the mounting nozzle (4-1).
8. The liquid-insulated transformer heat dissipation structure of any one of claims 1 to 4, wherein: the transformer (1) is a buried box transformer substation which is arranged in a pit below the landscape high-low voltage cabinet (5); the aluminum profile (2) is positioned at the lower part of the landscape high-low voltage cabinet (5).
9. The liquid-insulated transformer heat dissipation structure of claim 8, wherein: and a fan (6) is arranged at the lower part of the landscape high-low voltage cabinet (5).
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| CN202121175312.8U CN215417802U (en) | 2021-05-28 | 2021-05-28 | Liquid insulation transformer heat radiation structure |
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| CN202121175312.8U CN215417802U (en) | 2021-05-28 | 2021-05-28 | Liquid insulation transformer heat radiation structure |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116798742A (en) * | 2023-08-01 | 2023-09-22 | 广东佰昌能源科技有限公司 | Transformer heat abstractor |
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2021
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116798742A (en) * | 2023-08-01 | 2023-09-22 | 广东佰昌能源科技有限公司 | Transformer heat abstractor |
| CN116798742B (en) * | 2023-08-01 | 2023-12-29 | 广东佰昌能源科技有限公司 | Transformer heat abstractor |
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